Not completely clear on your qtion. However, I suggest you review the documents you received when you purchased your home. In particular, look for a lot location drawing and a title commitment or insurance policy. Assuming you purchased an owner's title insurance policy, you may want to contact the title insurance company to determine your property rights.
This should not be construed as formal legal advice or the offer of the formation of an attorney/client relationship. There is no substitute for taking the time to consult directly with an attorney regarding your specific legal needs and issues.